Part of the 1st International Winter Mountain Running Festival on Mount Hymettus's eastern slopes (18-20 December 2026), co-organized with the Municipality of Paiania and the Hymettus Protection and Development Association (ΣΠΑΥ). Route named after Demosthenes, the celebrated Athenian orator born in Paiania - a symbol of determination echoed in the race. Official start/finish: Central Zoodochos Pigi Square, Paiania. Confirmed start time 09:00 (the exact race day within the 18-20 Dec window has not yet been finalized). Loop course, 22+km, D+1,400m, 6-hour overall cutoff. Open to ages 18+, individual entries only; registration open/close dates and any medical-certificate requirement had not yet been published as of this announcement. Mandatory gear: offline GPX loaded on watch or phone, thermal long-sleeve top, waterproof/windproof jacket, gloves, and a charged phone with the race's emergency number saved; poles allowed; gear is checked before bib pickup. Checkpoints: CP1 Agios Ioannis 10km (D+600, cut-off 2h30), CP2 "Diaselo OTE" 15.7km (D+1,220, cut-off 4h30), finish in Paiania (D+1,400, cut-off 6h). Semi-autonomous race: carry at least 0.5L fluid and a reusable cup. Course-cutting, outside transport or skipping a checkpoint means disqualification. DNF: hand the bib to the sweep team or nearest station staff, or make your own way back to the nearest checkpoint/Paiania and notify organizers. NSAIDs (e.g. ibuprofen) are banned during the race. Awards: finisher medal for valid finishes within cutoff; top 3 men and top 3 women overall; age categories 18-29 through 70+ need at least 6 entrants to be awarded (otherwise only the category's top man/woman), no double podium. Registration is open. Info: gthathens100@gmail.com; Facebook: facebook.com/share/1GZgWNU8N9.